Photo by Mike Plagens. Along the
Arizona Canal in Phoenix, Arizona, USA.

In the Sonoran Desert along the Mexican border, this beautiful
duck can be found on ponds and slow rivers. Once known as tree ducks because of
their habit of nesting high up in tree holes. This one was found in Phoenix
where it shows occasionally along the Salt River and at urban lakes/ponds. Note
the pink-red bill and black under belly.